15.04.2026

P. S. Satunin (INR RAS) "The Cosmological Axion Sarov Haloscope (CASH) project: search for dark-matter axions, dark photons and high-frequency gravitational waves beyond the quantum limit"

Firmly established in astrophysical observations, dark matter evades direct detection in experiments. Axions and axion-like particles as well as dark photons are among the leading dark-matter candidates, and numerous attempts to detect them in laboratories have been performed.

In the Cosmological Axion Sarov Haloscope (CASH) project we propose to advance these efforts substantially, extending the sensitivity for dark-matter axions in the mass range of 38–54 μeV down to the axion-photon couplings motivated by generic models of quantum chromodynamics axion. Single-photon detectors based on Josephson junctions operating at ultra-low temperatures (20 mK) which overcome the standard quantum limit are the key elements of the experiment. The projected sensitivity will be reached in one year of data taking with a magnetic field of 1–10 T, making CASH the most sensitive haloscope in this mass range. Additionally, CASH setup will be sensitive to high-frequency gravitational waves which can transform into photons in a strong magnetic field.

Presentation

Link to watch the video on the JINR resource:
https://disk.jinr.ru/index.php/s/g5Krcbz8owqwkEs

Link to watch the video on VK:
https://vkvideo.ru/video-179241683_456239861

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P. S. Satunin (INR RAS) "The Cosmological Axion Sarov Haloscope (CASH) project: search for dark-matter axions, dark photons and high-frequency gravitational waves beyond the quantum limit"

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